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Nanophotonic and Teratronic Devices

Nanophotonics employs fundamental opto-electronic principles of light-matter interaction to implement novel functionalities on chip scale at lowest footprint, lowest energy consumption and highest operating speed.
THz Antenna coupled to a high-speed silicon plasmonic photodetector enabling opto-electronic generation and detection of waves by photomixing within a THz-bandwidth

Current research interests reach from high speed modulators and photodetectors for optical communications systems to integrated laser sources and sensors for biophotonic applications. The focus is on design, fabrication and characterization of Silicon Photonic and Plasmonic devices which cannot be realized using current CMOS processes in established semiconductor foundries. To this end, we employ latest generation multiphysics simulations tools to verify our device concepts numerically. The concepts are then realized on the silicon (Si) or silicon nitride (Si3N4) material platform using state-of-the-art semiconductor fabrication processes like electron beam lithography (EBL) or reactive ion etching (RIE) in our cleanroom facilities. The viability of the devices is then investigated in our characterization laboratories equipped with most recent optical and electronic instrumentation.

Teratronics ultimately targets at the generation, processing and detection of data at rates in the Tbit/s regime and of signals with THz bandwidths. To this end, novel nanophotonic and electronic methods are developed and their viability is tested in pioneering experiments. Teratronic devices constitute the building blocks of novel high-speed opto-electronic signal processing and wireless communication systems that will outperform currently existing communication technologies.

Nanophotonic and Teratronic Devices: Research Group Members / PhD Students
Portrait Name Title Phone E-Mail
Tobias Harter M.Sc. +49 721 608-42496 tobias harterIdv3∂kit edu
Daria Kohler Dipl.-Phys. +49 721 608-26823 (IMT)/ -47173 (IPQ) daria kohlerEvc6∂kit edu
Sascha_Muehlbrandt Dipl. - Phys. +49 721 608-42496 (IPQ) / -26830 (IMT) Sascha MuehlbrandtXan8∂kit edu
Sandeep_Ummethala M.Sc. +49 721 608-42496 (IPQ), -26830 (IMT) sandeep ummethalaEur3∂kit edu

Nanophotonic and Teratronic Devices: Research Group Members / E-Beam Team
Name Title Function
Dr. e-beam team leader
design conversion for e-beam lithography and operator of the e-beam
chip & wafer preparation for lithography (cleaning, spincoating), development and e-beam operator

Nanophotonic and Teratronic Devices: Joint Projects
Title Short Description From

Project website